add file upload to s3 (#1785)

Signed-off-by: yaron2 <schneider.yaron@live.com>

bindings/aws/s3/s3.go

@@ -21,6 +21,7 @@ import (
 	"encoding/json"
 	"fmt"
 	"net/http"
+	"os"
 	"strconv"
 
 	"github.com/aws/aws-sdk-go/aws"
@@ -37,6 +38,7 @@ import (
 const (
 	metadataDecodeBase64 = "decodeBase64"
 	metadataEncodeBase64 = "encodeBase64"
+	metadataFilePath     = "filePath"
 
 	metadataKey = "key"
 
@@ -64,6 +66,7 @@ type s3Metadata struct {
 	ForcePathStyle bool   `json:"forcePathStyle,string"`
 	DisableSSL     bool   `json:"disableSSL,string"`
 	InsecureSSL    bool   `json:"insecureSSL,string"`
+	FilePath       string
 }
 
 type createResponse struct {
@@ -156,7 +159,17 @@ func (s *AWSS3) create(req *bindings.InvokeRequest) (*bindings.InvokeResponse, e
 		req.Data = decoded
 	}
 
-	r := bytes.NewReader(req.Data)
+	var data []byte
+	if metadata.FilePath != "" {
+		data, err = os.ReadFile(metadata.FilePath)
+		if err != nil {
+			return nil, fmt.Errorf("s3 file read error: %s", err)
+		}
+	} else {
+		data = req.Data
+	}
+
+	r := bytes.NewReader(data)
 
 	resultUpload, err := s.uploader.Upload(&s3manager.UploadInput{
 		Bucket: aws.String(metadata.Bucket),
@@ -328,5 +341,9 @@ func (metadata s3Metadata) mergeWithRequestMetadata(req *bindings.InvokeRequest)
 		merged.EncodeBase64 = valBool
 	}
 
+	if val, ok := req.Metadata[metadataFilePath]; ok && val != "" {
+		merged.FilePath = val
+	}
+
 	return merged, nil
 }

bindings/aws/s3/s3_test.go

@@ -64,6 +64,7 @@ func TestMergeWithRequestMetadata(t *testing.T) {
 		request.Metadata = map[string]string{
 			"decodeBase64": "true",
 			"encodeBase64": "false",
+			"filePath":     "/usr/vader.darth",
 		}
 
 		mergedMeta, err := meta.mergeWithRequestMetadata(&request)
@@ -80,6 +81,7 @@ func TestMergeWithRequestMetadata(t *testing.T) {
 		assert.Equal(t, true, meta.ForcePathStyle)
 		assert.Equal(t, true, mergedMeta.DecodeBase64)
 		assert.Equal(t, false, mergedMeta.EncodeBase64)
+		assert.Equal(t, "/usr/vader.darth", mergedMeta.FilePath)
 	})
 
 	t.Run("Has invalid merged metadata decodeBase64", func(t *testing.T) {